Enterprise Resource Planning (ERP) systems are very common worldwide, but their implementation and upgrade projects are expensive, complex and often unsuccessful. A great role in their implementation is played by the ...

In this paper we present an experiment and two replications aimed at comparing the support provided by ER and UML class diagrams during comprehension activities by focusing on the single building blocks of the two notations. ...

We present a precise style for the modelling of business processes based on the UML activity diagrams and two controlled experiments to compare this style with a lighter variant. The comparison has been performed with ...

The work deals with an innovative micro-combined heat and power (micro-CHP) unit based on Stirling engine technology. Although simplicity of design, low-noise operation and multi-fuel feeding make Stirling engines a promising ...